Release agents

Abstract

N-acyl taurides can be used as release agents for reducing the adhesion of mouldings of a rubber or plastics material to the surface of a mould and for preventing sheet-form compounds from sticking together.

We claim: 
     
       1. A process for reducing the adhesion of molded articles of rubber compounds and plastics to the mold surfaces and for preventing sheet-form mixtures from sticking together which comprises applying to a mold surface a release agent consisting essentially of a compound having the formula   R--co--NH--CH.sub.2 --CH.sub.2 --SO.sub.3 M     wherein R is alkyl or alkenyl of 7 to 21 carbon atoms and having up to two hydroxyl groups, and M is a member selected from the group consisting of alkali metal cation, alklaline earth metal cation, ammonium, mono-alkanolammonium, di-alkanolammonium, and tri-alkanolammonium, each said alkanol moiety being ethanol or propanol.   
     
     
       2. The process of claim 1 wherein M is sodium. 
     
     
       3. The process of claim 1 wherein M is sodium and R is a stearyl group. 
     
     
       4. The process of claim 1 wherein the release agent is free from water-soluble salts of inorganic acids. 
     
     
       5. The process of claim 1 wherein the release agent is dispersed in an organic solvent. 
     
     
       6. The process of claim 1 wherein the release agent is dispersed in water. 
     
     
       7. The process of claim 1 wherein the release agent is applied to a mold surface by spraying.